Hello,
I have bought Samsung s4 LTE T-Mobile(SK telecom) at South Korea and was using in India more than 2 years without any issue on one of the LTE(4G) network(Idea network - 4G service) and it worked.
Now i started using JIO SIM which is 4G network for both data and voice . with this SIM , i can see that my SAMSUNG S4 is successfully register with JIO network. and able to see signal bars . however when i try to enable Mobile Data. it did not work .
I Just did the SW update to my mobile . and also added APN details for JIO SIM.
found LTE is enabled now . But I dont know which settings resolved the issue .
Below is the SW details
Model shv-e330s
andriod 4.4.2
kernel ver3.4.0-2933244
Referred APN details from below link
https://apn-india.gishan.net/settings/1172_25_jio_apn_settings_for_samsung_galaxy_s4_mini.php
Reliance Jio 4G internet APN settings 2017 For all Mobiles (Updated)
You would want to check the exact model vs new provider signal bands to ensure that you have compatibility bands. That phone was not sold by tmobile USA which is the provider who this forum is for.
If the bands are correct, get the apn settings for your new provider and create a new apn to use. That should be able to get you working if the phone is compatible.
.
Good details for us. Please read this info for Jio Tower.
Nice
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